US3250824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of flame resistant polyester resins
Assignee: Huels AG
•
Filing: 1963-12-02
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Granted: 1966-05-10
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Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 Maahs Gunther
- 👤 Wieschollek Helmut
- 👤 Gumlich Walter
- 👤 Kramer Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:35
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4071; C07F9/4081; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5337
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
PROCESS FOR THE PRODUCTION OF A FLAME RESISTANT POLYESTER SYNTEHTIC PLASTIC WHICH COMPRISES HARDENING A MIXTURE OF AN UNSATURATED POLYESTER, A CO-POLYMERIZABLE ETHYLENE DERIVATIVE AND A COMPOUND OF THE GENERAL FORMULA
Claim 2
Dependent Claim
31 words
PROCESS FOR THE PRODUCTION OF A FLAME RESISTANT POLYESTER SYNTEHTIC PLASTIC WHICH COMPRISES HARDENING A MIXTURE OF AN UNSATURATED POLYESTER, A CO-POLYMERIZABLE ETHYLENE DERIVATIVE AND A COMPOUND OF THE GENERAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |